In October 1917, following the United States’ entry into World War I, a group of independent oil men, many of whom became legendary in the history of Oklahoma and the petroleum industry, met in Tulsa, Oklahoma, to organize the Mid-Continent Oil and Gas Association.

The Mississippi/Alabama Division of the US Oil and Gas Association is a trade association that represents the area's oil and gas natural industry. The membership of the Association is comprised of companies engaged in oil and gas exploration and production, transportation, refining and marketing of petroleum products and natural gas transportation, processing, electric generation and distribution.